Automobile water circulating heater



May 23, 1950 H. STEIN 21,508,729

AUTOMOBILE WATER CIRCULATING HEATER 2 Sheets-Sheet 1 Filed- May 5, 1948 l INVENTQR. Helnnch Stem ATTORNEY May 23, 1950 H. STEIN 2,508,729

AUTOMOBILE WATER CIRCULATING HEATER Filed May 5, 1948 v 2 Sheets-Sheet 2 IN VEN TOR.

24 H 22 Fig.3 28 BY elnnch Sreln ATTORNEY Patented May 23, 1950 UNITED STATES PATENT OFFICE Heinrich Stein, Chicago, 111.

Application May 5, 1948, Serial No. 25,227

4 Claims. (01. 257-137) My invention relates to heaters primarily used in connection with vehicles, the said heaters being heated by virtue of the circulating liquid used to cool the engine of an automobile or vehicle of like character.

- An important object of my invention is to provide a liquid circulating heater which utilizes the circulating liquid used for cooling the engine of a vehicle, the said heater being so disposed as to radiate heat to the interior of the vehicle simultaneously providing the additional function of acting as an auxiliary cooler for the liquid before it is returned to the radiator of the vehicle for ultimate cooling prior to its re-circulation through the engine.

A further object of my invention is to provide a heater unit of the aforementioned character which consists of a central cylindrical section subdivided into two compartments, an intake compartment and an exhaust compartment, whereby the liquid is transferred from one of the said compartments to the other by means of radially disposed U-shaped communicating tubular means; all of the said tubular means being retained in place by an outer casing and a series of rather thin cylindrical radiating vanes.

A further object of my invention is to provide a circulating liquid type of heater which has the intake positioned coincidently with the central axis of the said heater unit, whereas the exhaust thereof is connected to any point within the radial confines or circular area, of the central unit.

A further object of my invention is to provide a circulating liquid-type of heater of the aforementioned character in which the circulation of the liquid taken in to the central part of the heater is dispersed radially outwardly, upwardly, and then inwardly through U-shaped connecting means to complete the cycle of liquid circulation or operation.

A further object of my invention is to provide a heater of the aforementioned character which is practical in construction, useful for the purpose for which it is purported to be used, and of such simple elemental structural assemblage as to warrant economical production thereof in quantity manufacture.

Other objects, ancillary advantages, and novel features embraced in my invention will become readily apparent from an examination of the accompanying drawings, elucidated further in the ensuing description, where like numerals are used to designate like parts, and in which;

Fig. 1 is a view of my invention shown connected underneath the hood of a vehicle shown in phantom lines in the illustration.

Fig. 2 is a top elevational view of the heater unit comprising my invention.

Fig. 3 is a cross-sectional view taken substantially on the lines 33 of Fig. 2.

Fig. 4 is a fragmentary cross-sectional view taken substantially on the lines 4-4 of Fig. 3.

Referring to the various views, my invention is generally designated 5, and it is connected through piping or tubing 6 to the jacket of the engine ll of a vehicle at the point 8 so as to receive thereinto the heated liquids coming from the engine subsequently to their absorption of the heat generated by the engine in its operation in order to effect cooling of the engine. The said liquid is then transmitted through the heater 5 and through the outlet 1 communicating and being connected at the point 9 to the radiator I0 01' the vehicle; the said radiator being used primarily for cooling purposes. Thus the heater 5, which I provide, has a dual function, that of heating the interior of a car through the heat currents dissipated thereby, and generally indicated by the arrows designated 21, and a second function of pre-cooling the heated liquids to be ultimately cooled by the engine radiator prior to recirculation.

The general construction of my heater invention is best illustrated in the views illustrated in Figs. 2, 3, and 4, and consists primarily of a central cylindrical section l2 having a side wall l3 with a reduced shoulder portion at I4 in order to seat the partition element IS.

A bottom is integrally formed and a separate top element [2 is seamed at [6 in order to form an enclosure of the said central cylindrical section l2 subdivided into two compartments designated l9 and 20. The compartment I9 is the outlet from the heater for the circulating liquid 28, whereas the bottom compartment 20 is the intake from the jacket of the engine and is fed by the tubing 1, the chamber or compartment l9 being connected to thetubular connection 6 which terminates at l8.

The side walls 13 of the central unit l2 are suitably drilled in order to receive at the top and bottom thereof the U-shaped sections designated'22 so as to form communication with the lower compartment 20 and with the upper compartment l9, to provide continuous circulation through the said U-shaped tubular elements 22.

The same are radially positioned as indicated in Fig. 2 at predetermined spacing and held in assemblage by the perimetral cover 2|. The said tubular sections are also held in place by a series of tubular elements 26 of rather thin metallic material, which serve a dual function, namely, of

3 rigidly reinforcing and holding in place the said tubular sections 22, the cylindrical sections 26 being suitably drilled in order to hold in rigid relationship the U-shaped tubular sections 22 heretofore mentioned.

It is to be noted that the intake 1 is bent to form two elbow portions so that its terminal extension 25 will enter into the compartment 26 at the central-pr "axial point of -theheater held in the partitien element ['5 at M. Thus the water is caused to circulate first from the radiator I through the motor H and then through the connection 8 and the pipings l,- -ultim ately passing through the compartment Where the hot water is then circulated in the direction of the arrows through the inlets 2d of the tuDular'eIements Z-Z; the outlets 23 of the said tubular elements 22, communicating with the compartment l9, causes the liquid to circulate outwardly from the-heater through the tubular connection 6 back to the radiator l0, thus-completing the cycle of operation. The hot water brought from'the enginejacket is th uscaused-to circulate through the U-shaped tubes and then brought back to the radiator. In circulating through the U-shaped tubes, heat waves-will betransmitted or radiated to the inte- -rior-confines 0f the vehicle as indicated by the arrows 21.

The cylindrical vanes 26 arepreferablyspaced in order to allow air currents tocirculate there- -through'and become heated. Theliquid -22-ab- -sorbs-the heat from the jacket ofthe engine, hence-cooling-the engine, thus the heat is radiated to heat up the interior confines of a vehicle so 'that the heater thus acts as a preliminary cooler to the liquid which is then circulated "through the radiator ill for final cooling and recirculation through thejacket of the enginell for cooling the same.

I- am aware-that many heaters have been created for the-same results as-my heater'will-provide; however, most of the heaters are usually heated through-the exhaust gases re'sulting as a product of combustion of the gases and the explosions'translated through theengine'to furnish motive power. In my particular instance, I wish tostress that-I am utilizing, rather than exhaust -:-gases for heating purposes, the heated liquid -whichisusedas acoolant for the engine ofjthe vehicle.

I believe, "I have-herein described rather su'ccinctly the nature and-construction, as well as theoperation of my-invention,and-inasmuch as the same is susceptibleof various modifications andimprovements, -I hereby-reserve the right-to all modificationsandimprovements coming within the scopeand spirit-of'my invention, as well -asany'that -are embraced in the accompanying -=ill-ustrations and drawings, and elucidated in the foregoing description; myinvention to be limited only to the sub joined claims.

Having thus disclosed and revealed myinvention, what I claim as new and desire to-secure-by Letters Patent is:

1 .-"A liquid circulating -heater -comprising, a central section subdivided into a: liquid inlet compartment and a liquid outletcompartment, U- -shaped tubular means having its termini --conhected respectively to the said inlet compartment and the said outlet compartment, liquid inlet means connected tothe'mid-portionoi thesaid inlet compartment, liquid outlet meansconn'ect'ed to thesai'd liquid outlet-compartmena-the longi- -tudinahaxes of the said -U -shaped:-tu-bular= means being disposed in right angular relationship to the axis of the said central section, and tubular cylindrical vane means provided with bored means for rigidly securing the leg portions of the said U-shaped tubular means and adapted to radiate heated currents therefrom.

2. A liquid circulating heater comprising, a

central section subdivided into a liquid inlet com- .partme'nt and =a liquid outlet compartment, U- }{);'Sh9 pd 'tiibularmeans having its termini connected respectively to the said inlet compartment and the said outlet compartment, liquid inlet-means=connected to the mid-portion of the said inlet compartment, liquid outlet means con- 15 nected to the said liquid outlet compartment, the 'longitudi-hal axes of the said U-shaped tubular means being disposed in right angular relations'hip to the axis of the said central section, the sa id' U shaped tubular means being disposed in radial formation, and tubular cylindrical vane -=mea-ns provided -with bored means for-rigidly -securing-=thedeg-portions of the said-U-shaped tx'rbi-ilar means and adapted to radiate heated currents therefrom. 3. A liquid circulating heater comprising, a centralsection subdividedinto a liquid inlet compartment -and'aliquid outletcompartment, U- shaped tubular means having its termini'connected respectively to the said inlet compartment '='-a-nd the said--outletcompartment, liquid inlet -'-means connectedt0--the mid-portion of the-said inlet 'compar tment; liquid outlet means connected to thesaidliquid-outlet compartment, the longitudinal *aXes -oi--- the said U -shaped-tubular means being disposed in right angular relationshipto the -axis 'of the said central-section, perimetral cover' means-rigidly securing the outer portions 0ftheuslaid-U'-shaped tubular means, and-tubular cylindrical va-ne'means provided with bored means 'for rigidlysecuring the le portions of the said -U-'shapedtubular means and adapted toradiate heated c-urrents' therefrom.

liquid circulating-heater comprising, a central section-subdividedinto a liquid inlet compartrnent=and a liquid outlet compartment, U-

shaped tubular-means having its terminicon- *neetedrespectively-to the said inlet compartment and -the said-outlet compartment, 1 liquid inlet means connected to the mid-portion of the-said inlet-compartment, liquid outlet'means connected tUO lihQ'Sflld liquid outlet compartment, the longitudinal axesof the said U-shaped tubular means bei-ng disposed in right angular relationship to --the= axis of the said-centralsection, the-said U- -shaped-tubular meansbeing disposed in radial sformation, perimetral cover means rigidly securfingt-he= outer-portions of 'thesaid- U -shaped tubu- '-lar means and tubular-cylindrical vane means rprovided with bored meansfor rigidly securing the leg portions of the said u-shapedtubular I -means and adapted toradiateheated currents --therefrom.

HEINRICH STEIN.

transceivers CITED The followingreferencesare of record sn the file of this patent:

" EDSTATES PATENTS -Number -Name Date 1,454,315 'eushmannannies Ma -3,1923 1;,901 082 Butterfleld Mar. 14,-31933 1,910,401 Mueller May-=23;-l933 1,980,811 

